Tiffin · Super C
Tiffin Allegro Bay
The Allegro Bay is Tiffin's Super C motorhome, built on a Freightliner S2RV truck chassis with a 360-horsepower Cummins diesel. Tiffin's online brochure library shows it from the 2022 model year. Most floorplans are about 39 feet long, and a shorter 34 DB was added for 2026.
Key facts re-checked. Owners, dates and prices were re-checked against their sources. A full second review is still to come.
All the years
Pick a model year
| Year | Configuration | Length | Chassis | Engine | Price when new |
|---|---|---|---|---|---|
| 2027 | 34 DB | 35.58 ft | Freightliner S2RV | Cummins B6.7 · 360 hp | — |
| 2027 | 38 AB | 39.33 ft | Freightliner S2RV | Cummins B6.7 · 360 hp | — |
| 2027 | 38 BB | 39.33 ft | Freightliner S2RV | Cummins B6.7 · 360 hp | — |
| 2027 | 38 EB | 39.33 ft | Freightliner S2RV | Cummins B6.7 · 360 hp | — |
| 2027 | Model-year overview | — | Freightliner S2RV | Cummins B6.7 · 360 hp | — |
| 2026 | 34 DB | 35.58 ft | Freightliner S2RV | Cummins B6.7 · 360 hp | — |
| 2026 | 38 AB | 39.33 ft | Freightliner S2RV | Cummins B6.7 · 360 hp | — |
| 2026 | 38 BB | 39.33 ft | Freightliner S2RV | Cummins B6.7 · 360 hp | — |
| 2026 | Model-year overview | — | Freightliner S2RV | Cummins B6.7 · 360 hp | — |
| 2025 | Model-year overview | 39.33 ft | Freightliner S2RV | Cummins B6.7 · 360 hp | — |
| 2024 | Model-year overview | 39.33 ft | Freightliner S2RV | Cummins B6.7 · 360 hp | — |
| 2022 | Model-year overview | 39.33 ft | Freightliner S2RV | Cummins ISB 6.7 · 360 hp | — |
A dash means that value has not been documented yet. Length, chassis and engine can change by floorplan inside one model year, so open a year for the full detail.
The story of the model
Allegro Bay history
The earliest Allegro Bay Super C brochure in Tiffin's online library is for 2022. It lists two floorplans, the 38 AB and 38 BB, on a Freightliner S2RV chassis with a 360-horsepower Cummins engine and a 150-gallon fresh water tank.
The 2024 and 2025 documents add a third 39-foot floorplan, the 38 CB. For 2026 the 38 CB is gone and a shorter 34 DB is marked new. The 2027 sheet adds the 38 EB and lists a nine-speed Allison transmission in place of the six-speed.
The Allegro Bay name is older than the Super C: Tiffin's 2009 Allegro Bus brochure already lists Allegro Bay among the company's trademarks. The earlier use of the name was not researched for this file.
- 2022Earliest Super C brochure
The 2022 brochure lists the 38 AB and 38 BB on a Freightliner S2RV chassis. Source ↗
- 2026Shorter 34 DB added
The 2026 sheet marks the 35-foot 7-inch 34 DB as new. Source ↗
- 202738 EB and nine-speed transmission
The 2027 sheet adds the 38 EB and lists an Allison 2909 MH 9-speed. Source ↗
Brochures and sources
- 2027 Allegro Bay Super C (Tiffin model page) ↗
- Tiffin brochure library ↗ — Brochures and specification sheets for the Allegro Bay Super C. The 2022 and 2024 to 2027 documents were opened for this file.
- 2027 Allegro Bay model page ↗ — Current floorplans and main specifications, with a link to the latest specification sheet.
Links open the original page. Facts are checked against these sources; tell us if you find one that is out of date.
Tiffin Allegro Bay coaches for sale
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